Question

He length of a simple pendulum is increased by 44%. its time period will increases by

Answer 1

Time period of a simple pendulum at surface of earth is given by [T=2π√(l/g)] where g=acceleration due to gravity so now if the length is increased by 44%. New length= 1.44l.

So T'=2π√(1.44l/g)=1.2T, means time period increased by .2 or 20%